If you've never heard of fox nuts, you'd be forgiven for assuming that they don't sound particularly palatable. But they're actually starchy seeds harvested from an aquatic lily and are being hailed as a versatile superfood, with recent studies supporting why they've been a powerhouse in Ayurvedic and Chinese medicine for 3,000 years, treating everything from obesity to high cholesterol and inflammation. And no foxes are harmed in the process.